Checkpoint: glClear changes - working, bug very rough.

src/mesa/main/buffers.c

@@ -38,6 +38,8 @@
 #include "fbobject.h"
 #include "state.h"
 
+#include "state_tracker/st_draw.h"
+
 
 #define BAD_MASK ~0u
 
@@ -176,7 +178,15 @@ _mesa_Clear( GLbitfield mask )
       }
 
       ASSERT(ctx->Driver.Clear);
+#if 0
       ctx->Driver.Clear(ctx, bufferMask);
+#else
+      st_clear(ctx->st, 
+               (mask & GL_COLOR_BUFFER_BIT) ? GL_TRUE : GL_FALSE,
+               (bufferMask & BUFFER_BIT_DEPTH) ? GL_TRUE : GL_FALSE,
+               (bufferMask & BUFFER_BIT_STENCIL) ? GL_TRUE : GL_FALSE,
+               (bufferMask & BUFFER_BIT_ACCUM) ? GL_TRUE : GL_FALSE);
+#endif                     
    }
 }